
Allegra 120 Tablet
Sanofi India Ltd - Tablet - 10 Tablet
Save ₹27.29
Fexofenadine hydrochloride 120 mg + Montelukast 10 mg
Delivered across India, usually 8–11 days after the order is confirmed. ₹49 delivery, free above ₹999.
Cash on delivery available — pay when your order arrives
This medicine needs a prescription.
You can pay now and add the prescription afterwards. We pack your order only after a pharmacist verifies it.
A doctor decides whether a prescription can be issued. If it is not issued, the prescription items in your order are cancelled and refunded. You choose this at checkout.
Allegra M Tablet is used for allergic rhinitis (seasonal/perennial) with symptoms such as sneezing, runny/blocked nose, itchy/watery eyes; allergy symptoms where leukotriene-mediated congestion is prominent.
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated October 2026
Allegra M Tablet contains Fexofenadine hydrochloride 120 mg + Montelukast 10 mg. It belongs to the Second-generation H1 antihistamine + Leukotriene receptor antagonist (LTRA) class of medicines.
Fexofenadine is a second-generation H1 antihistamine that blocks histamine action to relieve sneezing, itching and watery eyes. Montelukast is a leukotriene receptor antagonist that blocks leukotriene D4, helping reduce nasal congestion and allergy-related inflammation.
Tablet for oral use. Take as prescribed, usually once daily, with or without food; swallow whole with water. Avoid taking with fruit juices (apple/orange/grapefruit) close to the dose as they may reduce fexofenadine absorption.
Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.
Take it as soon as you remember. If your next dose is almost due, skip the one you missed — never take two doses together to catch up.
An overdose of this medicine can cause severe drowsiness, a fast heartbeat, confusion and, in children, agitation and fits. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.
Most side effects of Allegra M are mild and settle as the body gets used to the medicine. The ones reported most often are:
Stop the medicine and get help at once for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.
Use with caution in kidney impairment (fexofenadine) and in patients with history of neuropsychiatric symptoms (montelukast). Montelukast has been associated with mood/behavior changes (agitation, anxiety, sleep disturbance, depression, suicidal thoughts); stop and seek medical advice if such symptoms occur. Not for acute asthma attacks. May cause dizziness in some patients—use caution while driving. Inform doctor about all medicines and allergies.
Not for anyone with a known allergy to this medicine or to any ingredient in the pack. The sedating antihistamines are not suitable for very young children, or for people with glaucoma or an enlarged prostate, without medical advice.
Fruit juices (apple/orange/grapefruit) may reduce fexofenadine absorption; antacids containing aluminium/magnesium may reduce absorption (separate by 2 hours); erythromycin/ketoconazole may increase fexofenadine levels; rifampicin may reduce montelukast levels; gemfibrozil may increase montelukast exposure
Store at room temperature (below 25°C), protected from moisture and light. Keep in original blister pack and out of reach of children.

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Compiled from the manufacturer's prescribing information and the sources below, and reviewed by a registered pharmacist. It does not replace your own doctor's advice.